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UN health agency

Delta Covid variant now spread to 185 countries: WHO

"The Delta variant now accounted for 90 per cent of the sequences submitted to GISAID with a sample collection date (between 15 June-15 September 2021)," the global health agency said in its weekly epidemiological update on Tuesday. GISAID, which stands for Global Initiative on Sharing Avian Influenza Data, is an open-access database.